Abstract
AbstractA ligand‐free microwave assisted synthesis of internal alkynes using copper‐catalyzed Suzuki type coupling reaction of alkynyl bromides with boronic acid derivatives has been developed. This protocol uses cheap CuI, greener solvent ethanol and K3PO4 base under microwave irradiation. This strategy does not need any ligand or sealed tube conditions. This methodology provides an efficient way to synthesize 1,2‐diarylacetylenes in good to excellent yields.
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